Mystery Ranch Radix 57 Backpack - Men's Black/Hunter Small. This super technical 57-liter pack is built with lightweight Ultra-PE Birdseye and recycled Robic Ripstop fabric. It is small breathable and fast while offering plenty of storage features while taking the edge off multiple-day ascents and long stretches of through-hikes without compromising toughness. The removable frame and lid can adjust to meet all your ounce and gram needs and gives you the option of how you want to carry those numbers. The versatile harnessing comes in mens and womens sizing for optimal comfort and fit for endurance while crushing hundreds of miles of trail. Specifications for Mystery Ranch Radix 57 Backpack - Men's: Manufacturer: Mystery Ranch Gender: Male Weight: 3.8 lb Pack Application: Backpacking Pack Type: Backpack Capacity: 57 liters Pack Volume: 57 liters Body Material: Technical Ultra-PE Birdseye Hydration Compatible: Yes Fabric/Material: Technical Ultra-PE Birdseye Recycled 100D Robic Ripstop YKK zippers Age Group: Adults Style: Casual Pack Loading: Top Features of Mystery Ranch Radix 57 Backpack - Men's Off-center zipper for more convenient accessibility Removable pocketed lid gives you the option of keeping your snacks camera and other essentials close at hand on the trail Removable pocketed waist belt keeps you snacks phone or sunglasses easily accessible Easily compressible front and side pockets are perfect for holding light layers water bottles and/or things you need to get to or stash away quickly Adjustable lightweight harnessing makes your hike that much more comfortable Mens and womens harnessing options for a superior ergonomic fit with your body Hydration reservoir compatible Package Contents: Mystery Ranch Radix 57 Backpack - Men's Mystery Ranch 112976-002-20-S: Radix 57 Backpack - Men's Black/Hunter Small